Bobbin handling mechanism



Feb. 23, 1954 ,A

Filed June 18, 1951 @@@QQQQG W. L. FERRY ETAL BOBBIN HANDLING MECHANISM 8 Sheets-Sheet' l Feb. 23, 1954 w. PERRY ET AL BoBBIN HANDLING MEcHANIsM 8 Sheets-Sheet 2 Filed June 18, 1951 Pez pf@ Feb. 23, 1954 w. L. PERRY ET AL BOBBIN HANDLING MECHANISM 8 Sheets-Sheet 5 Filed June 18, 1951 cfosepp @M Feb. 23, 1954 w. PERRY ET Al. n 2,670,150

BOBBIN HANDLING MECHANISM Filed June 18, 1951 8 Sheets-fShet 4 Feb. 23, 1954 W, PERRY ET AL 2,670,150v

BOBBIN HANDLING MECHANISM Filed June 18, 1951 8 Sheets-Sheet 5 Feb. 23, 1954 w. L. PERRY ET AL 2,670,150

BOBBIN HANDLING MECHANISM Filed June- 18, 1951 8 Sheets-Sheet 6 Feb. 23, 1954 w. L. PERRY ET A1. 2,670,150 BOBBIN HANDLING MECHANISM Filed AJune 18, 1951 8 Sheets-Sheet 7 Feb. 23, 1954 w. PERRY ET AL 2,670,150 BOBBIN HANDLING MECHANISM Filed June 18, 1951 8 Sheets-Sheet 8 Patented Feb. 23, 1954 UNITED STATES PATENT OFFICE Wilton, Inc., shire N. H., assignors to Abbott Machine Co., Wilton, N. H., a corporation of New Hamp- Application June 18, 1951, Serial No. 232,218 33 Claims. (Cl. 242-35.6)

This invention relates to bobbin handling mechanism for textile machines and has for its principal object to provide improved mechanism for inserting an end of thread into the interior of a bobbin through the opening in the tip of the bobbin. As is well known, textile bobbins, particularly those used in shuttles of looms, are quite generally hollow, having a central longitudinal passage from end to end.

British patent specification No. 10,033 of 1911 proposed having the leading, or first to be withdrawn, end of thread contained within the interior of its bobbin, and proposed to draw this end of thread out automatically by suction at the loom, for automatically threading the thread into the shuttle of the loom.

British patent specification No. 5,176 of 1911 proposed inserting the end of thread into the interior of a bobbin by winding extra coils of thread beyond the end of the bobbin, upon the spindle, and then withdrawing the bobbin off from the spindle so that these extra. coils would enter the bore of the bobbin.A This same British patent sp'ecication also suggested that instead of the thread being coiled, it might be drawn through vthe passage in the bobbin by any suitable means, for instance, by tweezers, a piece of suitablybent wire or the like.

The present invention aims to provide mechanism which will insert an end of thread into 'the interior of a bobbin in an automatic and expeditious manner, and, more specifically, to provide mechanism which will perform this automatic operation while the bobbin is in the course of being transferred away from its winding position, as to a portable bobbin holder such as a pinboard.

1 The invention is not limited in usefulness to cases where the end of thread, inserted in the bobbin, is to be automatically removed at the loom. Even in cases where the end of thread is to be removed manually, it is a considerable advantage to have this end of thread contained -within the bobbin, when this can be accomplished automatically and in a simple manner as in the present invention. The position of the end of thread is definitely known, the end of thread is prevented from tangling, and the tendency of the outer coils of the wound thread to Slough is reduced.

v- The invention is deemed to be capable of being incorporated in machines that wind yarn onto bobbins, whether these machines constitute spinning or twisting machines or purely Winding machines. Thus for example the principle ofthe invention is deemed applicable to a spinning frame of the automatic dofiing type. The invention will be explained in its preferred form as applied to an automatic filling bobbin Winder, equipped with a pinboard attachment, such as shown in the United States patent application of Edward J. Abbott and Winthrop L. Perry, Serial N o. 44,754, led August 17, 1948.

Other objects and advantages of the invention will be apparent from this specification and its accompanying drawings in which the invention is explained by a description of a preferred example thereof.

. In the accompanying drawings,

Fig. 1 is a plan view with some of the parts omitted and some of the parts broken away showing a portion of a traveling spindle lling Winder equipped with a pinboard attachment and having the present invention applied thereto;

Fig. lal is a fragmentary plan view, partly broken away, of an air connection of the apparatus of Fig. 1, but to a larger scale;

Fig. 2 is a view taken from the right of Fig. 1, partly in elevation and partly in vertical section;

Fig. 3 is a fragmentary plan view showing certain movable parts of the apparatus at approximately their mid-cycle positions;

Fig. 4 is a view similar to Fig. 2 corresponding to the positions of parts shown in Fig. 3;

Fig. 5 is a schematic diagram in the nature of a plan view showing the cradle and one of the package carriers of the pinboard attachment;

Fig. 6 is a fragmentary View in the nature of a vertical section, with various parts omitted, showing the wound bobbin having been rolled from the cradle into a horizontally disposed package carrier of the pin'board attachment;

Fig. 7 is a View from the same direction as in Fig. 2, with many parts broken away or removed showing particularly the driving mechanism for the cradle and package carriers of the pinboard attachment, together with certain additional parts employed in connection with the present invention;

Fig. 7EL is a detail, mainly in plan, showing a Geneva movement in the driving mechanism for the package carriers of the pinboard attachment;

Fig. 8 is a fragmentary plan View showing the movable thread cutter, open and in position to receive the thread;

Fig. 9 is a view similar to Fig. 8 showing the movable thread cutter as closed;

Fig. 10 is a fragmentary plan view showing the movable thread'cutter at its extreme position,

in position for its leading end of thread to be drawn into the opening in the tip-of vthe-bobbin; Fig. 13a is a fragmentary view similar 'toFig 13, showing the thread as .having lbeen .drawn into the opening in the tip-of the lbobbin,fand

Fig. 14 is a view similar to l`Fig. l13, and like Fig. 13L shows the thread as having been drawn into the opening in the tip .of the bobbin, the bobbin here being partly broken away to show portions of its longitudinal passage.

The traveling spindle filling bobbin Winder o`f lwhich a portion Ais :shownzin 'Figs. v1 and i2 may Ainclude many of lthe ifeatures r`of `.United States 3Reissue iPaten't No. .22,492 and '.Patents Nos. 2,362,455, .52,377,36'7, 2,395,028,12426167 and 2,-426;1"68. Thus lthe winder'may include aaplurallty of =winding units `indicated generally at l fmovable-around an endless `trackconsisting of upper andlower stationary `rails I'B and (1 b'yfmeanslofhan'endlesschain I8 (Fig. .1). Each winding lunit maylbe :individually driven -hyits oWn electric motor 4.9 deriving its current throughltheframe ofthe machine and through suitable brushes contacting with. stationary'conductor bars 26, .':so .as "to wind `an individual bobbin as the iwinding unit travels around the machine.

NarnpnithreadTfrom a'supply S carried by the unit may libe ldrawn `upwardly through suitable tension devices 2| and ,through v,a breakage detector semblyzindicated. gener-allyati23, and thence onto a Winding bobbin held-.between inner and outer centers'i24 and2 5.

fI'he 2 inner "center 224 iis rotated yby Lthe motor |19 4to .rotate"lthelbobbirL '.The-.threadgude assembly '.23 A.is rec'iprocated vby #suitable :cam V.and linkage connections also driven by the motor, and, '.iduring the winding,'the threadzguide assembly l is. progressively advanced from the base f .the nbobbin 'toward .the tip, -to vprovide the typical filling wind.

Upon i the f completion of winding of u a bobbin on fthe -traveling .unit, the individual motor of theiunit is-. deenergized and rotationxof'thebobbinnis 'stopped by breaking the .circuit tothe motor, :for `.instance by lifting Yof the units brushes from-.the conductor bars 2D. This action should-:normally occur because of completion of winding of the bobbin somewhat before the windingunit reaches the apparatus shown in Fgxl. #Preferably the machine is provided 4with arknownform of mechanismwhich Awill deenergizefthe-individualmotor at such place in any event, whether or not the bobbin has beencompletely -rwound It will therefore be understood that the ,winding un-its enter the apparatusshown in Fig-1; anA inactive condition-.but still holding the wound bobbin in winding positionbetween thecenters 24 and: 25.

'L'Therfoutercenter 25 of each .unit .is'retractable to discharge the Wound package from winding position by` means of-a crank arm 3U onthe Winding unit and atstationaryabutment 3|- diagrammaticallyfindicatecl in `Fig. 1. Uporrthe crankarm'.:iO-encountering the abutmentl, the

22 to atraversing .thread guideaswound bobbin will drop from the centers a short distance onto a horizontal stationary plow plate 32 which extends along the path of travel of the winding units I5, underneath their head portions. The bobbin is rolled along this plate by being held between a vertical plate 35 and a rod 36 (Fig. vv2) bothof which extend Iifromfand move along with the -winding unit.

When the crank 30 leaves the right end of abutment 3| in Fig. 1, the outer center 25 is r.allowed to -close upon a new empty bobbin appropriately "held by suitable bobbin-feeding mechanism located in this region, the bobbinlfeeding Ymechanism being omitted from these drawings for fclarity of illustration but a line b-b in Fig. 1 indicating the center line at which 4anew empty bobbin is held by the bobbin-feeding mechanism. In Fig. 2 a new empty bobbin B lis-shown as having been received between the centers 24 and 25, in winding position, and above thedischarged full .bobbin-B-which isbeing rolled along vonzthe plate 32.

uits .in .commercial fmachines Yembodying .the inventions of the abovepatents, the threadguide assembly 23 isreturned to afposition above and adjacent to the :base ,center .24, being so shown in Fig. 1. .This return of -the thread-guide assembly coupled with the action of `an-upperplow plate 38 disposes across the center24 arun of the `:thread which extends from the A.wound .bobbin'upon the lower plowplate 32 .to the thread guide assembly :23. When the new empty bobbin B is receivedbetween the-.centers as above described, this run of'thread isclamped between thefbase end of theA new-bobbin and the centerld.

Instead of the thread, guide beinglocated-above the winding ;position,-the thread guide may be located below the winding position `as in ,the United-States patent application of -Winthrop L. Perry, Serial No. 154,553,=.led April 7, .1950, .now PatentNo. .21,630,275 of March3, 1953, andthe thread may be positionedacross the basecenter 24 by the mechanism shown in-that application.

.In either 1 case, .at this .-stage, the present .machine .departs from 'the mode of operation of themachinesaof these previousapplications and patentsvbynotdetting go ofthe cutend of thread of the Wound bobbin when this is severedrom the .thread .extending to `the supply. yInstead, as .hereinafter explained, the present machine uponfcutting the wound-bobbin free, holds .the end of thread which .is v attached -to the .wound bobbin and carries :this `end 4into position for automatic insertion intopthe opening inthe tip ofthe wound bobbin. This action as will be seen below iscoordinated tothe transfer ofthe wound bobbin to a portable bobbin holderfsuch as a pinboard,iso that such bobbin holder when filled `presents an array 4of systematically arranged iilling'wound bobbinseach with its leading-end inserted in the opening inthe tip ofthe bobbin.

Thelpinboards, eachcomprising a flat bottom i I ,carryingtenfrows ofc-eightpins 12, are moved stepbyfstepfrom leftto right in Fig. .1-` by ,travelingchains as. described insaid application. Serial No.y 44,754.

vThea pinboardfimechanism of .application Serial No. 44,7 54 includes :mechanism Yfor moving the wound bobbins one by one out from beneathithe winding unitsfmechanismfor .groupingthebobbins ina. group correspondingv to the pins of` a row` on the; pinboard, :typicallyfeight pins, mechanismifordischarging thebobbins of thefgroup onto the .pins.of a. row,..and..mechanism for...ad

vancing the pinboard step by step to receive successive such groups.V The bobbin-discharging mechanism and the pinboard-advancing mechanism will not here be described in detail but reference may be had to said application Serial No. 44,754. However the mechanism for moving the bobbins out from beneath the winding units, and the mechanism for grouping the bobbins' in a group will be described in some detail because they here participate in the additional operation of inserting the end of thread into the opening in the tip of the bobbin.

Thus as in application Serial No. 44,754 a cradle 40 is mounted to tilt on a cross rod 45, Fig. 6, carried by parallel links I49 which are pivotally mounted at 50 upon a stationary part of the machine. An extension 50l extending from one of the links 50 is connected by a link 52 to a crank disk 53 which is intermittently rotated, as subsequently described, to carry the cradle from its broken line position of Fig. to its full line position and back to such broken line position in one revolution of the crank disk.

The cradle carries a downwardly extending arm 54 carrying a roller 55 adapted to roll along a guide surface 56 to determine the inclination of the cradle. At the broken-line receiving position of the cradleof Fig. 5, and also throughout most of the travel of the cradle toward its discharging position, the guide surface 56, acting through roller 55, holds the cradle approximately horizontal. However, close to the discharging position shown in Fig. 6 and in full lines in Fig. 5, the guide surface 56 retreats, permitting the cradle lto tilt to the inclination shown in Fig. 6 to roll the wound bobbin onto a package carrier 4|. The several package carriers 4| are individually pivotally secured to an endless tractor element, shown as an endless chain 59, running on spaced sprockets 60 and 6| (Fig. 7). Sprocket 60 is driven in steps as subsequently described to advance the chain 59 in steps corresponding in length to the: center-to-center spacing of the bobbin-holding pins |2 of a row on the pinboard. As shown in Fig. 3, the package carriers 4 as they occupy a straight portion of the path of the chain are closely disposed side byl side, their center-to-cente` spacing also corresponding to the center-to-center spacing of the pins of a row.

A bar 63 having both straight and curved portions on which the outer parts of the package carriers 4| ride, is shaped to direct each package carrier into an elevated approximately horizontal position adjacent to the delivery position of the cradle 40, one such package carrier 4| being shown so elevated in each of Figs. 1, 2*, 3, 4 and 7. The bar 63 is then curved to allow the package carriers to swing downwardly into an inclined but generally vertical position preparatory to lpassage along a straight path over and across the pinboard in this generally vertical position, this generally vertical position being adapted for endwise delivery of the wound bobbins onto the pins of the pinboard.

A stationary curved guide plate 65 (Figs. 3 and 7), adjacent to the path of the outer ends of the package carriers, retains the wound bobbin in its carrier 4| during passage from the elevated position until the carrier arrives above the pinboard. Thereafter, a gate 61 (Figs. 1, 2 and 7) retains the wound bobbin in the package carrier until the step-by-step advance of the carriers has assembled a group of eight Wound rbobbins over the-pinboard above eight pins in a' l. |34. The upper end thereon'a" bell crank |36, Figs.

row. and the gate is opened by ami-suitablemechanism such las described in application Serial No. 44,754, delivering the bobbins to the corresponding pins.

Suitable driving mechanism for the crade 40 and the series of package carriers 4| may include any suitable form of oney revolution clutch adapted to impart a single revolution to a main drive shaft |5 (Fig. 7). The initiation of this single revolution may be by a detection of a Wound bobbin rolling onto the cradle 40 asin application Serial No. 44,754, or by detection bf such wound bobbin as it is about to roll into the similar cradle, as in one form of device shown in the United States patent application of [Winthrop L.. Perry for Bobbin Packing Mechanism, Serial No. 204,738, led January 6, 1951, or by passage of a winding unit, as in another form of vdevice shown in said application Serial No. 204,-

738. However initiated, the single cycle of revolution of shaft ||5 begins at approximately the time when a wound bobbin reaches the endof the lower plow plate '32.

A single revolution of shaft j||5 acts through the crank disk53 and link 52 to move the cradle 40 to deliver the wound ljbobbin to a package carrier 4| and then return the cradle to its receiving position at the end of plow plate' 32. After reception of the Wound bobbin by a package carrier 4|l a later part of the single revolution of shaft l5 acts to advance the sprocket 60, the chain 59, and the series of package carriers 4| one step, i. e., advance the package carriers 4I the distance between adjacent pins l2 of a row on the pinboard.

Referring to Fig. 7, shaft ||5 has fast thereon near its upper end a gear |1 which meshes with a gear ||8 fast on a countershaft 53a carrying the crank disk 53. Above its gear Ill, shaft ||5 extends loosely through the sprocket 60 and its hub 12, and also loosely through the slotted gear |20 of a Geneva movement, slotted gear |20 being fast to hub 12 and sprocket 60. Gear H8 carries the pin element |2| of the Geneva movement cooperating with the slotted gear |20 to impart to the sprocket 60 and chain 50 the above described step-by-step movement. I

As indicated above, the present machine, as it Ycuts the wound bobbin free from the thread exvtending to the supply, holds the end of thread which is attached to the Wound bobbin and carries this end into position for automatic insertion into the opening in the tip of the wound bobbin.

A thread cutter best shown in Figs. 8 and 9 is shown as including a long arm |30 of which the right end is shaped as the lower blade |30a of the cutter. A movable middle blade |30b is pivoted to the lower blade at |3| and an upper blade |30c of spring material cooperates with the middle blade |30b to sever a thread between them when the middle blade is closed as in Fig. 9. The meeting edges of the upper and middle blades are sufficiently sharp to act as scissors, but the meeting edges of the middle and lower blades are dull and do notcut, but clamp between them and hold the thread that is cut by the upper and middle blades. Thus after the thread extending to the wound bobbin is cut, this wound end is held by the cutter.

An actuating shaft |34, Fig. 2, is rotatable in a bushing |35 mounted on the lower plow plate 32, the cutter arm |30 being rotatable about shaft of shaft |34 e carries fast 8 and 9, of :which one arm is connected by a link |31 to a tail portion |30d of the middle blade |30". The other arm of bell crank |36 has an arcuate slot |39 to receive a pin |40 fixed in the arm |30 of the thread cutter. As a consequence, clockwise rotation of the shaft |34 in Fig. 8 first acts through the link |31 to close the movable blade |30b as shown in Fig. 9 and thereby cut and clamp the thread, and then acts through pin |40 to swing the cutter with its blades closed to the outward position of Figs. and 3. To insure that the arm does not move away from thread-receiving position until the blade |30b is closed, a stationary bracket|42 is provided with a facing of friction material |43 such as cork upon which the arm |30 rests. When the cutter is moved in the reverse direction, that is lfrom outward position to thread-receiving position,v the friction material |43 similarly acts to insure that the movable blade is open before the cutter starts this return movement. I

The drive of the cutter through shaft |34 is preferably obtained from the same disk 53 that forms part of the mechanism for operating the tray40, by developing the lateral edge of this disk asa cam surface 53b as shown in Fig. 3. This cam surface during rotation of the disk acts through a follower |41'upon a bell crank |48 and thence through a link |49 and crank arm |50 to rotate the shaft |34 and cutter'.Y A suitable spring |5| acting upon bell crank |48 maintains the follower |41 in continual contact with the cam surface 53h throughout the cycle of operation.

The shape and position of the cam surface 53b are such that the movement of the cutter from its 'thread-receiving position of Fig. l begins shortly after the cradle commences to move outwardly, carrying the Wound bobbin, and the cutter and cradle reach their outer positions at approximately the same time.

A suction holding tube |55 has its open end |56 curved upwardly (Fig. 2) and to the left (Fig. 3) so that this open end is located approximately beneath the outer position of the cutter. Inwardly from its end, and where it faces the path of the bobbins in the package carriers 4|, the tube |55 is slotted at |51, Fig. 13, to allow travel of a held en d of thread therealong away from the open end. Suction is applied to the tube |55 from any suitable source, preferably by aspiration. Thus, as shown, tube |55 terminates in a. T, indicated at |59, Figs. 1 and la, a jet of compressed air being injected through a pipe |6| which terminates in a nozzle ||5|a within the T, thereby to create suction in the tube |55. In the preferred form of apparatus shown, the pipe |6| leading to nozzle |6|a is in constant communication with a pipe |52, Fig. '1, connected to any suitable supply of compressed air. Provision is however made for periodically nullifying the suction effect in the suction tube |55 as subsequently described.

As the thread is carried outwardly by the cutter and the wound bobbin is carried outwardly by the'cradle 40, the run of thread between the cutter and bobbin passes under a curved nger |54, Fig. 4. l

When theI wound bobbin is rolled from the cradle onto a package carrier 4|, i. e. at approximately mid-cycle, the thread has arrived at a point close to the open end of tube |55. Just after the bobbin rolls onto the package carrier, the connections to the cutter act in a return direction, first to open the cutter yand release. the

8., held end of thread, and then to return the cutter to thread-receiving position.

When the cutter releases its thread preparatory to starting its return movement, the end of thread attached to the bobbin is drawn into the suction tube |55 and there held.

One step of the sluiting movement of the package carriers 4| then takes place, effected through a movement of the sprocket 60 by the Geneva movement pin |2| coming into ldriving engagement with the slotted gear |20. During this step the package carrier 4| containing the bobbin whose end of thread is held in tube |55 is moved from a horizontal position indicated at the line c to the inclined position indicated at the line d, Figs. 1, 4 and 13'at which position the base end of the bobbin rests upon the curved guide plate 65. The package carriers stop with a wound bobbin aligned with this line d, due to disengagement of the Geneva movement pin |2| from the slotted gear |20 shortly before the end of a singie revolution of the main shaft I5. At the end of a single revolution of the main shaft I5, the wound bobbin thus carried to the line d has its end of thread still extending into the suction tube |55, as indicated for the bobbin at line d in Figs. 2 and 13. With the bobbin at this line d, a portion of its thread is thus held outwardly beyond the tip of the bobbin, in position to be drawn into the central longitudinal passage of the bobbin at the beginning of the next cycle of operation, as subsequently described.

The guide plate 65 is provided at the line d, with an orifice |65, Figs. l2 and 13, over which the central longitudinal passage of the bobbin lies, in communication with this orice, whenv the bobbin is at the line d.. Orifice |65 communicates through a pipe |66 with a horizontal discharge pipe |61, and a nozzle |60, Fig. l2, at the base of pipe |66 is adapted to inject a jet of compressed air from a tube |69 into the pipe |61 thus inducing suction in pipe |66 and through orifice |65 and in the longitudinal passage through the bobbin, and a resultant flow of air downwardly into the opening at the tip of the bobbin and down through its longitudinal passage.

Tube |69 is connected to the compressed air supply pipe |62 through a valve |10 which is normally closed. Valve |10 is controlled by a cam |1| on shaft ||5 so as to open briefly and then close during the rst few degrees of movement of shaft H5.

The same valve |10 also permits periodic flow of air to a pipe |15, Figs. 7 and la, adapted to y admit air under pressure into the T |59 in the direction of the suction tube |55. This admission of air through pipe |15 has the effect of nullifying or overcoming the suction in tube |55, thus releasing the end of thread held therein. The current of air entering the opening in the tip of the bobbin draws this end of thread into the bobbin as shown in Fig. 14. Thereupon the valve |10 closes, stopping the injection of air through nozzle |68, thereby terminating the suction and flow of air through the interior of the bobbin, and also terminating the injection of air through the tube |15, thus allowing suction again to be built up in the tube |55.

The release of the end of thread from the suction tube |55 and the insertion of this end of thread into the central longitudinal passage of a bobbin at line d takes place, as indicated above, at the beginning of a cycle of operation, and more particularly before .the time when the movable thread cutter delivers the end of thread of the next succeeding bobbin into suction tube |55.

It Will be observed 'from Fig. 14, that each bobbin has its leading end of thread inserted into the interior of the bobbin before leaving the line d. Thus the procession of bobbins which have passed the line d in step-by-stepmovement into alignment with pins of the pinboard (only two f such bobbins being shown in Fig. 2) all have their lea-ding ends of threads contained within their central longitudinal passages. When a pinboard has been lled, as by discharge of ten successive rows of eight bobbins each onto the pins l2, all bobbins on the pinboard are thus uniformly in this condition in which their leading ends of threads are in definite positions.

During passage of the bobbin in a curved path during the last part of its travel toward position d and also while at position d, a wire spring |18 carried by the nger |54 rests against the tipv of the bobbin. The effect of this wire spring is to prevent any substantial amount of thread from being unwound from the bobbin by the suction in tube |55, or later by the suction in the central longitudinal passage in the bobbin, the thread being unable to pass around the left or tip end of the spring |18 in Figs. 13 and 14. Wire spring |78 becomes disengaged from the bobbin when the bobbin passes a little beyond the position d, leaving the end of thread still inserted in the longitudinal central passage of the bobbin.

We claim:

1. Bobbin-handling mechanism adapted to receive wound bobbins from textile machines, such bobbins each having a longitudinal passage, including mechanism for causing an air current to enter the longitudinal passage of a bobbin from the tip end of the bobbin, and mechanism acting automatically upon a thread for positioning said thread where said thread is subject to said air current entering the longitudinal passage of the bobbin, so that said thread is thereby drawn into said passage.

2. Bobbin-handling mechanism adapted to receive wound bobbins from textile machines, such bobbins each having a longitudinal passage, including mechanism for applying suction to the longitudinal passage of a bobbin from the base end of the bobbin so as to create an air current entering the longitudinal passage of the bobbin from the tip end of the bobbin, and mechanism acting automatically upon a thread for position- `ing said thread where said thread is subject to said air current entering the longitudinal passage of the bobbin, so that said thread is thereby drawn into said passage.

3. Bobbin-handnng mechanism for textile machines of the kind in which wound bobbins of thread are transferred from winding position onto a bobbin holder, such bobbins each having a longitudinal passage, comprising mechanism acting automatically upon a thread for positioning said thread so as to lie outwardly beyond the tip of a wound bobbin which is part way from winding position to the bobbin holder, and mechanism for inserting said thread into the longitudinal passage of the bobbin from the tip end; thereof including means for establishing an air. current through said passage.

y 4. Bobbin-handling mechanism for textile machines of the kind in which wound bobbins oi thread are transferred from winding position j onto' 3f, bobbin holder, such bobbinsse'ach having giflong'itudinal passage, comprising mechanism farrangfed to cause an air currentto enter the l0 longitudinal passage of a bobbin from the tip end thereof as the bobbin is part way froml winding position to the bobbin holder, and mechanism acting automatically upon a thread for positioning said thread Where said thread is subject to said air current entering the longitudinal passage of the bobbin, so that said thread is thereby drawn into said passage.

' 5. Bobbin-handling mechanism adapted to receive wound bobbins from textile machines, such bobbins each having a longitudinal passage, irrcluding mechanism from the tip end of the bobbin, and mechanism acting automatically upon a thread of said bobbin foi` carrying a portion of said thread to a position where said thread is subject to said air current entering the longitudinal passage of the bobbin, so that said thread is thereby drawn into said passage.

6. Bobbin-handlingmechanism adapted to receive wound bobbins ifromtextile machines, such bobbins each having-a longitudinal passage, including mechanism for applying suction to the longitudinal passage of a bobbin from the base end of the bobbin so as to create an air current entering the longitudin '-lpassagel ofthe bobbin from the tip end oft; obbin, and mechanism acting automatically uponra thread of said bobbirifor carrying a portion of said thread tol a; position where said thread is subject to said air current entering the longitudinal passage of the bobbin, so that said thread is thereby drawn intor said passage. i.

7. Bobbin-handling mechanism for textile ma,- chines of the kind in which wound bobbins-of thread are transferred from .winding position onto a bobbin holder, such bobbins each-*having a longitudinal passage, comprising mechanism tudinal passage of said bobbin from the tip end:

thereof including means for establishing an air current through said passage.

8. Bobbin-handling mechanism for textile machines of the kind in which wound bobbins of thread are transferred from winding position onto a bobbin holder, such bobbins each having,

a longitudinal passage, comprising mechanism arranged to cause an air current to enter,- the longitudinal passage of a end thereof as the bobbin winding position to the bobbin holder, andmech-l anism acting automatically upon a thread of said bobbin for carrying a portion of said thread to a position where said thread is subject to said air current entering the longitudinal passage of said bobbin, so that said thread is thereby drawn into said passage.

9. Bobbin-handling mechanism for textile machines comprising mechanism acting at the conclusion of winding of a textile bobbin to sever the thread extending from a supply to the wound bobbin, such bobbin having a longitudinal passage, and mechanism for subjecting the severed end of thread extending to the wound bobbin to an air current entering the longitudinal passage of said bobbin from the tip end thereof, to insert said severed end into said passage.

10. Bobbin-handling mechanism for textile for causing .y an airfcurrent.4 to enter the longitudinal passage,- of a bobbinv bobbin from the-tip--A is part way; from.-

-machines comprising mechanism acting at the conclusion of winding of a textile bobbin to sever' the thread extending from a supply to the Wound bobbin, such bobbin having a longitudinal passage, and mechanism for subjecting the severed end of thread extending to the wound bobbin to an air current entering the longitudinal passage of the bobbin from the tip end thereof, to insert said severed end into said passage, including a suction conduit arranged to apply suction to the longitudinal passage of the bobbin from the base end thereof so as to create such air current.

11. Bobbin-handling mechanism for textile machines of the kind in which wound hcbbins of thread are transferred from winding position onto a bobbin holder, such bobbins each having a longitudinal passage, comprising mechanism acting at the conclusion of Winding of a bobbin to sever thethread extending from a supply to the Wound bobbin and carry the severed end portion of thread of the bobbin to a position where it lies outwardly beyond the tip of said bobbin as said bobbin is part way from winding position to the bobbin holder, and mechanism for inserting said thread into the longitudinal passage of said bobbin from the tip end thereof including means for establishing an air current through -said passage.

12. Bobbin-handling mechanism for textile machines comprising mechanism acting at the conclusion of winding of a textile bobbin to sever the thread extending from a supply to the wound bobbin, such bobbin having a longitudinal passage, mechanism for positioning, outwardly beyond the tip end of the wound bobbin, the severed end of thread that extends to the wound bobbin, and mechanism for creating an air now into the longitudinal passage of the bobbin from the tip end thereof, to carry the severed end of thread into said longitudinal passage.

13. Bobbin-handling mechanism for textile machines comprising mechanism acting at the conclusion of winding of a textile bobbin to sever the thread extending from a supply to the wound bobbin, such bobbin having a longitudinal passage, mechanism for positioning, outwardly beyond the tip end of the wound bobbin, the severed end of thread that extends to the Wound bobbin, and mechanism for applying suction to the longitudinal passage of the bobbin from the base end thereof so as to draw the severed end into said longitudinal passage from the tip end thereof.

14. Bobbin-handling mechanism for textile machines of the kind in Which wound bohbins of thread are transferred from Winding position onto a bobbin holder, such bobhins each having a longitudinal passage, comprising mechanism for severing the thread extending from a supply to the wound bobbin, mechanism for causing an air current to enter the longitudinal passage of the Wound bobbin from the tip end thereof as the bobbin is part way from winding position to the bobbin holder, and mechanism for carrying the severed end of thread attached to the Wound bobbin to a position Where said thread is subject to said air current entering the longitudinal passage of the bobbin, so that said thread is thereby drawn into said passage,

15. Bobbin-handling mechanism for textile machines of the kind in which wound bobbins of thread are moved from winding position onto a bobbin holder, such bobbins each having a longitudinal passage, comprising mechanism for severing the thread extending from a supply to a wound bobbin and thread-carrying mechanism for carrying the severed end of thread away from Winding position, a thread holder adapted to receive the severed end of thread from the threadcarrying mechanism, the path of movement of the bobbin toward the bobbin holder carrying the tip end of the boboin past said thread holder, and mechanism for applying suction to the longitudinal passage of the bobb-in from the base end thereof to draw the thread into said passage from the tip end of the bobbin.

16. Bobbin-handling mechanism for textile machines of the kind in Which wound bobbins of thread are moved from winding position onto a bobbin holder, such bobbins each having a longitudinal passage, comprising a cutter and clamp for severing the thread extending from a supply to a wound bobbin and clamping the severed end of thread remaining attached to the bobbin, mechanism for moving the clamp and cutter away from winding position, a suction nozzle adapted to receive the severed end from the clamp and cutter, the path of movement of the bobbin toward the bobbin holder carrying the tip end of the bobbin past said suction nozzle, and mechanism for applying suction to the longitudinal passage of the bobbin from the base end thereof to draw the thread into said passage from the tip end of the bohbin.

17. Bobbin-handling mechanism for textile machines of the kind in which wound bobbins of thread are transferred from winding position onto a bobbin holder, such bobbins each having a longitudinal passage, comprising mechanism arranged to cause an air current to enter the longitudinal passage of a bobbin from the tip end thereof as the bobbin is part way from winding position to the bobbin holder, mechanism acting automatically upon a thread of said bobbin for holding a portion of said thread in a position Where said thread is subject to said air current entering the longitudinal passageA of said bobbin, and means for releasing the thread from said holding mechanism, so that said thread is drawn by the air current into said passage.

18. In mechanism for inserting an end of thread into the longitudinal passage of a bobbin, the combination of a suction conduit for holding the end of thread outwardly beyond the tip of a bobbin, mechanism for causing a current of air to enter the longitudinal passage of the bobbin from the tip end thereof, and mechanism for reducing the suction in said conduit to facilitate withdrawal of the end of thread therefrom.

19. Bobbin-handling mechanism for textile machines of the kind in which wound bobbins of thread are transferred from winding position onto a bobbin holder, such bobbins each having a longitudinal passage, comprising mechanism arranged to cause an air current to enter the longitudinal passage of a bobbin from the tip end thereof as the bobbin is -part way from winding position to the bobbin holder, suction mechanism for holding a portion of the thread of said bobbin in a position Where said thread is subject to said air current enter-ing the longitudinal passage of said bobbin, and mechanism for reducing the suction in said suction mechanism, thereby to release said thread, so that said thread is drawn by the air current into said passage.

20. In mechanism for -inserting an end of thread into the longitudinal passage of a bobbin,-the combination of a suction conduit for holding the 'end of thread outwardly beyondA the V13 tip of a bobbin, a second conduit communicating with the longitudinal passage of the bobbin from the base end thereof, and mechanism for simultaneously applying suction to the second conduit and reducing suction' in the rst conduit.

21. Bobbin-handlingvv mechanism for textile machines of the kind in Which wound bobbins of thread are moved from winding position onto a bobbin holder, such bobbins each having a longitudinal passage, comprising mechanism for severing the thread extending from a sup-ply to a wound bobbin and thread-carrying mechanism for carrying the severed end of thread away from winding position, a thread holder adapted to receive the severed end of -thread froml the thread-carrying mechanism, the path of movement of the bobbin toward the bobbin holder carrying the tip end of vthe bobbin past said thread holder, and mechanism for applying suction to the longitudinal passage of the bobbin from the base end thereof to draw the thread into said passage from thev tip end of the bobbin, and mechanism for releasing the thread from said holder.l

22. Bonnin-handling mechanism for textile machines of the kind in which wound bobbins of thread are moved from winding position onto a bobbin holder, such bobbins each` having a longitudinal passage, comprising mechanism for severing the thread extending from a supply to a wound bobbin and thread-carrying mechanism for carrying the severed end of thread away from winding position, a suction nozzle adapted toreceive the severed end of thread from the threadcarrying mechanism, the path of movement of the bobbin toward the bobbin holder carrying the tip end of the bobbin past said suction nozzle, mechanism for applying suction to the longitudinal passage of the bobbin from the base end thereof to draw the thread into said passage from the tip end of the bobbin, and mechanism for relieving suction in the suction nozzle to facilitate discharge of the severed end from the suction nozzle to the longitudinal passage of the bobbin.

23. Bobbin-handling mechanism for textile machines of the kind in which Wound bobbins of thread are transferred from winding position onto a bobbin holder, such bobbins each having longitudinal passage, comprising thread-carrying mechanism for carrying an end portion of thread of a bobbin to a position where it lies outwardly beyond the tip of said bobbin as said bobbin is part way from winding position to the bobbin holder, said thread-carrying mechanism comprising a clamp and cutter acting to cut the thread extending from a supply to the wound bobbin and acting to clamp the end of thread then remaining attached to the wound bobbin, and mechanism for inserting said end of thread into the longitudinal passage of the bobbin from the tip end thereof including means for establishing an air current through said passage.

24. Bobbin-handling mechanism for traveling spindle multiple-unit winding machines of the kind in which wound bobbins of thread are transferred from the respective winding units onto a bobbin holder, such bobbins each having a longitudinal passage, comprising a movable threadcarrying mechanism comprising a clamp and cutter adapted to lie in an open state in the path of threads of the winding units, said clamp and cutter upon closure cutting the thread extending from a supply to the wound bobbin and clamping the end of thread then remaining attached to the machines of the kind vin Wound bobbin,.said clamp and cutter being movable outwardly from the rpath of the threads of the winding units toward the bobbin holder and being adapted to open in itsouter position to release the clamped end of thread, and mechanism for inserting said end of thread into the'longitudinal passage of the bobbin from the tip end thereof including means for establishing an air current through said passage.

25. Bobbin-handling mechanism adapted to receive wound bobbins from textile machines,

such bobbins each having' a longitudinal passage,

including mechanism for positioning a thread outwardly beyond the tip of a wound bobbin, a suction nozzle arranged to hold the thread in such position, and mechanism for inserting said thread into the longitudinal passage of the bobbin from the tip end thereof including means for establishing an air current through said passage.

26. Bobbin-handling mechanism adapted to receive wound bobbins vfrom textile machines, such bobbins each having a longitudinal passage, including mechanism acting at the conclusion of winding of a textile bobbin to sever the thread extending from a supply to the wound bobbin, mechanism for'carrying the severed end of thread attached to the bobbin to aposition outwardly beyond the tip of said bobbin, a suction nozzle arranged to hold the thread `in 'such position, and mechanism for inserting said end of thread into the longitudinal passage of vsaid bobbin from the tip end thereof including means 'for establishing an aircurre'nt through said passage.

`27, Bobbin-handling mechanism for textile whichwound bobbins of thread are transferred from winding position onto a bobbin holder, such bobbins each having a longitudinal passage, comprising a clamp and cutter acting to cut the thread extending from a supply to the wound bobbin and acting to clamp the end of thread then remaining attached to the wound bobbin, a suction nozzle arranged to hold the thread outwardly from the tip of the bobbin as said bobbin is part way from winding position to the bobbin holder, the clamp and cutter being movable to carry the end of thread to said nozzle, and mechanism for inserting said end of thread into the longitudinal passage of said bobbin from the tip end thereof including means for establishing an air current through said passage.

28. In bobbin-handling mechanism of the kind having a guide surface arranged to support the bases of bobbins during transfer thereof from winding position toward a bobbin holder, such bobbins each having a longitudinal passage, a suction connection opening through said guide surface in position to communicate with the longitudinal passage of a bobbin supported on said guide surface, thereby to cause a current of air to enter the longitudinal passage of the bobbin from the tip end, and mechanism for presenting a thread to said air current so that said thread is thereby drawn into said passage.

29. Bobbin-handling mechanism adapted to receive wound bobbins from textile machines, such bobbins each having a longitudinal passage, including mechanism for inserting the thread of a bobbin into the longitudinal passage of said bobbin including means for establishing an air current through said passage, a member engageable with the bobbin to restrain the thread from unwinding therefrom, and mechanism for withdrawing said member froni the bobbin.

30. Bobbin-handling mechanism adapted to receive :wound .bobbins irom textile zmachines,

4such :bobbins eachrhaving a zlongitudinalgpassage, fincluding :mechanism :for 9inserting the thread l. of

a .'bobbin .into i.the :longitudinal tpassage of Vsaid bobbinincluding means ifor establishing an air current `through Asaid passage, va `member posi- 'tioned'to inter-vene between the bobbin and -the `thread during such insertion vof thelthread, yand mechanism for withdrawing said .member from ybetween the thread N:and bobbin.

31. Bobbin-handling mechanisml adapted to receive Wound bobbins from textile machines, such 1`bobbins each `having alongitudinal passage, .in-

cluding mechanism :for causing an air current Vto enter the longitudinal passage of the bobbin Cfrom the Ytip end ofthe vbobbin, mechanism for .carrying a portion of thefthread vof the 4bobbin Yto a position where `such thread is Vsubject to said yair current `entering the 4longitudinal `pasisage of the bobbin so vthat'said thread is `thereby drawn -into said passage, l,and a member engageable withthe bobbin to restrain the thread from Aunwinding therefrom 'under the influence .of the 'aircurrent l 32. :Bobbin-handling umechanism 'adapted to` receive wound bobbins from textile machines,

l rmeingidrawn into esaid passage Aby :said air ,cur-

`rent While rsaid"mexnberisbetween the thread and bobbin, 'and mechanism for "withdrawing said member fromy between the thread and bobbin.

33 Bobbin-hand1ing mechanism for textile machines of the -kind in which Wound bobbins of thread are transferred from winding vposition .onto Aaoobbin holder, such bobbins each having Aa longitudinal passage, comprising `mechanism `arranged to cause an `air current to-enter Athe longitudinal ,passage of a bobbin from the tip end thereof asr the bobbin is part lWay from winding .position-to the Abobbin holder, mechanism for carrying a vportionof the thread of said bobbin to a position-where said thread `is subject `to ,said air current entering the longitudinal pas- -sage of said bobbin so-that said thread is therebyvdrawn intoesaid passage, anda member positioned to engage lthe bobbin at such part way position to restrain .the thread from unwinding from the bobbin, the subsequent stage-of transfer of Ithe bobbin `from such part Way position toward the bobbin holder then withdrawing said member from between the thread and bobbin.

WINTHROP L. PERRY. JOSEPH RING.

.References Cited in the file 'of .this patent UNITED STATES PATENTS `Number Name Date 2,208,930 Kohlisch July 23, 1940 2,426,167 Abbott et'al Aug. 26, 1'941 2,429,330 Roberts Oct. 21, 1947 2,460,736 Drake Feb. l, 1949 

